Syringe.



A. SPANGLER.

SYRINGE.

APPLICATION FILED MAY 8, 1913.

atented Apr. 28, 1914.

TE SAS AENT @FFIQEQ ALBERT SPANGLER, OF IVIOLINE, ILLINOIS.

SYRINGE.

retirees.

To ZZ 107i om it may concern Be it known that I, ALBERT SPANGLER, a citizen of the United States, residing at Moline, in the county of Rock Island and State of Illinois, have invented certain new and useful Improvements in Syringes; and I do declare the following to be a full,.clear, and exact description of the invention, such as will enable others skilled vin the art to which it appertains to make and use the same.

This invention relates to improvements in syringes.

One object of the invention is to provide a syringe having an improved construction of valve casings, each made in two parts with the valve loosely mounted between them so that when the outer part is taken off the valve itself drops out of place and the body may be cleaned or sterilized.

Another object is to provide a syringe which will be simple, strong, durable and inexpensive in construction, efficient in operation and in which the parts may be readily separated for cleaning or other purpose.

lVith these and other objects in view, the invention consists of certain novel features of construction and the combination and arrangement of parts as will be more fully described and claimed.

In the accompanying drawings: Figure 1 is a plan view of my improved syringe with parts broken away to more clearly illustrate the construction and arrangement of the valves and their casings. Fig. 2 is a cross sectional view through the outer portion of the barrel or body of the syringe taken on the line 2 2 of Fig. l. Fig. 3 is a similar view through the water inlet branch of the barrel or body of the syringe, taken on the line 3 3 of Fig. l.

My improved syringe comprises a tubular cylindrical body portion 1 which may be of any desired diameter and length and on one side of which is formed a branch 2. The body 1 and branch 2 may be formed of hard rubber or any other suitable material and the branch is disposed at an acute angle to the body 1 and project-s a short distance beyond the inner end thereof as shown. On the inner end of the barrel or body 1 is formed a knob or head 3 with which is adapted to be engaged the open end of the bulb 4 which as herein shown is preferably spherical in shape. The bulb and tubes are of soft rubber, as are the washers referred to below. The opposite or outer end of the Specification of Letters Patent.

Application filed May 8, 1913.

Patented Apr. 28, 1914i.

Serial No. 766,385.

body 1 is interiorly threaded, as is also the outer end of the branch 2 thereof.

lVithin the barrel or body 1 near the outer or forward end thereof and between said end and the inner end of the branch 2 is a partition 5 in the form of a cylindrical block having therethrough a central bore or passage G, the outer end of which is flared to form a valve seat 7. Adapted to be engaged with the valve seat T is a check valve S, the stem 9 of which works loosely in the bere or passage 6 as shown. Engaged with the outer or forward end of the barrel or body 1 is a tube attaching plug 10 having a tapered outer end 11 provided with an annular groove 12 and adapted to receive the inner end of the water discharging tube 13. rlie plug has formed therethrough a central bore or passage 1l and the inner end of the plug is provided with notches 15 which are arranged at diametrically opposite positions and extend inwardly for a suitable distance as shown. T he inner portion of the plug is threaded and is adapted to be screwed into the threaded end of the barrel 1 and on the plug intermediate its ends is an annular enlargement 16 which forms a shoulder 17 between which and the end of the barrel is arranged a washer 18 whereby a fluid-tight connection is formed between the bulb and the barrel or body of the syringe.

Arranged in the outer end of the branch 2 is a plug 19 having a threaded inner portion which is screwed into the end of the branch 2 and has on its opposite end a tapered extension 2O in which is formed an annular groove 21 and which is adapted to receive the end of the suction tul e 22 of the syringe. The plug has formed intermediate its ends an annular enlargement 28 which provides a shoulder 2% between which and the end of the branch is arranged a washer 25 whereby a fluid-tight connection is formed between these parts. In the plug 19 is formed a central bore or passage 26 the inner end of which is flared to form an annular valve seat 27 with which is engaged a check valve 28 having a stem 29 which works loosely in the bore of the plug as shown. lVithin the branch 2 and spaced al suitable distance from the inner end of the plug is a partition in the shape of a cylindrical block 30 having in its edges a series of notches 31. This block is provided to limit the opening movement of the valve 28 while the notches 31 will permit the water to pass `freely through the branch 2 and into the barrel. or body i or the syringe.

ln the outer end of the suction tube is arranged a hollow member 32 which is formed ot metal and is of sui'licient weight to sinh and hold this end of the suction tube beneath the surface ot the water in the receiitaele 'from which the same is being forced by the syringe. r the suction tube may bc o t any desired length as may also the discharge tube l. lliith the outer end oi' the tube 123 is adapted to be engaged any form or style or nozzle 33 according to the purpose tor which the syringe is to be used. The member the nozzle, and the alves may be of metal; and the plugs and blocks may be ot metal or hard rubber held in place in any suitable manner as by being forced into the body l and branch 2.

In the operation of the syringe the member 3Q and outer end ot the suction tube 22 or the syringe is placed in the receptacle containing the water or other tluid to be injected by the s va'inge after which the bulb icontracted and then permitted to expand. The expansion ot the bulb creates a suction in the, body or barrel l and through the hrancl. Q which will close and hold the discharge val-fc t3 in a closed position, at the same time opening the inlet valve Q8 and drawing a charge oit water or other fluid through the suction tube Q2, branch Q and into the body l of the syringe. After the water has been thus drawn into the barrel the bulb is again contracted by pressure, which operation will close the inlet valve 28, open the discharge valve 8 and torce the contents olf the barrel out through the discharge tube lil and nozzle 33 will be Ieadily understood. The opening movement or the valve 8 is limited by the engagement thereof with the notched inner end of the plug l0 and by providing the notches 15 in said end ot' thc plug` the yalve will not be permitted to close the passage ll as the water will flow around the valve through the notches i5 and into the passage l-las will be readily understood. By thus constructing and arranging the barrel or body et the syringe and the valves therein it will be seen that by rapidly compressingl and releasing the bulb il, a large, strong and prac tically continuous stream ot water may be discharged -from the nozzle of the syringe.

The sollt rubber tubes and bulbs may be readily withdrawn and replaced, and as these are the most susceptible to the action ol' sterilizingacids or chemicals, the remaining parts of the syringe may then be treated without injury. lt the body portion be of hard rubber and all parts excepting those ust mentioned ot metal, such parts may be removed from the body portion and boiled or treated with chemicals which might injure said body portion. ln restoring the parts the plugs will of course be screwed into place until they compress the washers beneath them, andtheretore the blocks will be inserted first and pushed inward t'ar enough to allow the valve heads to play between them and the inner ends of the plugs. Each valve casing is theret'ore made up of a tubular outer extremity ot the body, a plug screwed into it to a certain point, and a block disposed within it inside the plug and remote from the inner end of the latter to a sui'licient extent to allow the valvediead to move as will be clear. lhen the plug is withdrawn the valve itself falls out, and it is quite possible to cleanse the body very thoroughly by washing it without removing the block because what sediment accumulates will ordinarily be outside of such block,

From the foregoing description, taken in connection with the accompanying drawings, the construction and operation ot the invention will be readily understood without requiring a more extended explanation.

Various changes in the iiorm, proportion7 and the minor details of construction may be resorted to without departing from the principle or sacriticing any oit the advantages ot the invention as claimed lla ving thus described my invention, what l claim is:

A syringe comprising a tubular body having a lateral branch, a bulb connected with the inner end of said body, a tubular plug screwed into its other end and having transverse notches across the inner extremity of its bore, a tube detachably connected with this plug and carrying a nozzle, a cylindrical block disposed within this end ot the body beyond the inner extremity oit the plug and having a central bore and a valve seat at the outer end of the same, a valve resting on said seat and loosely disposed below the inner extremity of the plug; a tubular plug screwed into the outer end of said branch and having a valve seat in the inner extremity of its bore, a tube and suction member detachably connected with this plug, a cylindrical block disposed within said branch beyond the inner extremity ot this plug and having peripheral notches, and a valve on the seat in this plug and whose opening movement is checked by the block.

ln testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

BERT SPANGLER. lWitnesses EMMA Pinon, Mirti lrnnonnn.

monies this may he obtained :for five cents each, by addressing the Commissioner et Patents, Washington., 11" 

